Strand winding



March 26, 1968 R. K. STANLEY 3,374,950

I STRAND WINDING Filed Oct. 25, 1965 5 Sheets-Sheet 1 flV /VTOK ROBE RTK. STANL EY March 26, 1968 R. K. STANLEY 3 3,374,960

STRAND WINDING Filed Oct. 23, 1965 3 Sheets-Sheet 2 men rot ROBERT K.STAN LEY.

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March 26, 1968 R. K. STANLEY STRAND WINDING 5 Sheets-Sheet 5 Filed Oct.23, 1965 //VVW7'0 ROBERT K. STANLEY MC g 4/120? United States Patent3,374,960 STRAND WINDING Robert K. Stanley, Media, P'a., assignor toTeehmservrce Corporation, Lester, Pa., a corporation of PennsylvaniaFiled Oct. 23, 1965, Ser. No. 502,850 18 Claims. (Cl. 24218.1)

ABSTRACT OF THE DISCLOSURE This invention relates to winding of textilestrands into package form, concerning especially traverse windingthereof. Formation of a ribbon wind is precluded by means of a rollintermediate the package and strandtraversing means. The intermediateroll receives the strand and deposits it onto the package while alsonormally rotating the package. The intermediate roll also introducesvariation into the traverse, both by simply being there and moreespecially by being moved bodily on its axis with respect to thetraversing means, which in preferred form is a grooved traversing driveroll.

In traverse winding of a textile strand into package form there is atendency for the strand from successive traverses to 'be superimposeddirectly upon itself in a so-called ribbon configuration when there is asimple relationship between traverse speed and package surface speed.The resulting uneven configuration is unstable, leading to slou-ghing ofthe strand, and is conducive to migration and breaking of filaments,especially in multifilament strands, upon unwinding of the package.

A primary object of the present invention is prevention of ribbonformation in traverse wound packages of textile strands.

Another object is modification of the strand path between traversingmeans and package.

A further object is controlled variation in spacing of the strandpackage from the strand-traversing means.

Other objects of the present invention, together with means and methodsfor attaining the various objects, will be apparent from the followingdescription and the accompanying digarams.

FIG. 1 is a perspective view of traverse winding apparatus for textilestrands in accordance with this invention;

FIG. 2 is a diagrammatic end elevation of certain of the same apparatuselements, with indication of variation in the relative location thereof;

FIG. 3 is a diagrammatic end elevation of a specific embodiment of meansfor varying the relative location of certain of the same apparatuselements;

FIG. 4 is a diagrammatic end elevation of a modified embodiment of meansfor varying the relative locationof certain of the same apparatuselements;

FIG. 5 is a diagrammatic end elevation of another embodiment of meansfor varying the relative location of certain of the same apparatuselements;

7 FIG. 6 is a diagrammatic end elevation of a further embodiment ofmeans for varying the relative location of the same apparatus elements;and

FIG. 7 is a plan view of certain of the same elements as in FIG. 6 takenas VIIVII thereon;

FIG. 8 is a perspective view of winding apparatus according to thepresent invention and includingyet'another embodiment of means forvarying the relative location of certain of the elements therein;

FIG. 9 is a front elevation, partly in section, of the apparatus of FIG.8; and

FIG. 10 is a front elevation, also partly in section, of the sameapparatus, with certain of the elements thereof shown in an alternativelocation.

3,374,956 Patented Mar. 26, 1968 In general, the objects of the presentinvention are accomplished, in traverse winding of a textile strand intopackage form, by positively traversing the strand back and forthparallel to the package surface at a location spaced therefrom andconstraining the strand therebetween to follow a substantially arcuatepath, as viewed in a direction parallel to the package surface, from thetraversing location to the package surface, The invention comprehends,in apparatus for practicing the foregoing steps, means for supportingthe strand package for rotation, means for traversing the strand backand forth along the package, and a roll intermediate the traverse meansand the package location to receive the strand from the traverse meanson the way to the package and to rotate the package by surface contacttherewith.

FIG. 1 shows, in perspective, package 11 onto which strand 10 is windingfrom a source thereof (not'shown). The strand passes under bar guide 12,then into the traversing groove of traverse roll 14, next about part ofintermediate roll 16, which itself is shown in surface contact with boththe traverse roll and the package, and

.finally winds onto the package. It will be apparent that the path ofthe strand about the intermediate roll approximates a half circle of arcas viewed parallel to the contiguous package surface but actually is amore complex curve, varying in length and location therealong throughoutthe traverse stroke. Two alternative paths of the strand about therespective illustrated elements (except the intermediate roll, behindwhich the strand is hidden in this view) are shown in broken lines. Axle15 of the traverse roll, axle 17 of the intermediate roll, andsupporting spindle 13 of the package are parallel to one another; theaxles are supported for rotation in conventional frame-supportedbearings (not shown), and the spindle is rotatably carried on swing arm19, which is pivotally supported about a fixed axis provided by pin 20(not visible in this view) at its opposite end.

The operation of the elements shown in FIG. 1 is readily understood.Either of the rolls is driven appropriately to forward the strandthrough the described path. The intermediate roll introduces a lag intothe traverse path so that the traversing of the strand at the packagesurface is somewhat out of phase with the traversing in the groove ofthe traverse roll and, more importantly, decreases the effectivetraverse stroke somewhat and tends to blur it as compared with the moredefinite reproducibility of the stroke at the traverse roll surface.Such effects of the use of the intermediate roll vary also as thepackage increases in size and weight. The overall effect is to inhibitribbon formation on the package surface. Subsequent views show similarapparatus (in which like parts are identified by identical referencecharacters and are not necessarily mentioned again) modified for addedribbon-breaking effect.

FIG. 2 shows in schematic end elevation, package 11 and traverse roll 14located respectively above and below and both contiguous withintermediate roll 16. A doubleended arrow to the right and left throughaxle 17 of the intermediate roll indicates limited lateral movementthereof (i.e., to and fro circumferentially on the surface of thetraverse roll), which introduces another variable in the deposition ofthe strand (not shown here) onto the package surface.

FIGS. 3, 4, and 5 show, in schematic end elevation, several devices forattaining the limited movement of axle 17 of intermediate roll 16indicated in FIG. 2. Pair of aligned supporting arms 27 (one visible)for the axle are pivoted by pin 28 on bracket 29 afiixed to the frame(not shown). Link 25 eccentrically mounted at one of its ends on wheel22, which has axle 23, is pivotally secured at its opposite end to one(or a pair of such links to both) of arms 27. Rotation of wheel '22oscillates the arms through a limited arc, imposing the indicatedmovement of the intermediate roll on its axle. The drawings are not toscale, and the movement of the roll may be only a few degrees; slightinterruption of surface contact between the respective rolls may resultin intermittent variation in surface speeds (unless both are drivenalike from a common drive) and may be controlled by adjustment of theeccentricity or by relocation of the pivot for the supporting arms withor without appropriate change in the arm length.

In FIG. 4, modified pair of aligned supporting arms 27' (one visible)for axle 17 of intermediate roll 16 have cam roller 31 (or a pairthereof) mounted on angled extension 32 of one (or both) of the arms forinterception by cam 33 on axle 34. Return spring 35 connects the arms toa portion of the frame located adjacent the same side thereof to whichthe extension projects. In FIG. 5, at least one of further modifiedaligned supporting arms 27" (one visible) has short longitudinal slot 36therein accommodating pin 37 on the end of tongue 38 extending fromarmature 39 of solenoid 49, which is furnished with electrical leads 41.If desired, elements 39 to 41 may be modified for pneumatic, rather thanelectrical, actuation (i.e., piston 39 in cylinder 40 furnished with airlines 41), and return spring 35 may be deleted. In all these embodimentsthe winding of strand 10 onto package 11 is improved in like manner.

FIGS. 6 and 7 show, in end elevation and plan, respectively, a furthermodification in which intermediate roll 16 is moved in opposite lateraldirections at its opposite ends to swivel it, i.e., simultaneouslymoving one end forward and the opposite end backward with respect totraverse roll 14, for example, and then reversing directions. This isaccomplished through use of pair of supporting arms 46, 48 pivoted onpin 27 in bracket 28 and having respective slots 45, 47 (one each) attheir upper ends to receive axle 17 of the intermediate roll.Oscillation of the respective arms in opposite directions isaccomplished by attaching to each of the arms a device such as shown inany of FIGS. 3 to and operating them out of phase, as will be apparent.The intermediate roll remains in surface contact with the traverse roll,as well as the package, except at the extremities during the resultingswivelling movement of the intermediate roll on its axle.

FIG. 8 shows in perspective, and FIGS. 9 and in front elevation (partlyin section), yet another modification of apparatus according to thisinvention. In this embodiment, intermediate roll 16 moves upward out ofcontact with traverse roll 14 from time to time, and the relativesurface speed of one roll to the other is varied when they are notcontiguous. In addition to the elements visible in FIG. 1, these viewsshow pivot bar 51 having affixed to its near end an end of narrow lever52 with slot 53 therein near the opposite end thereof to accommodate anend of axle 17 of the intermediate roll. The pivot bar has aflixed toits opposite end wider lever 54, which has similar slot 55 therein nearthe opposite end thereof to accommodate the opposite end of theintermediate roll axle. The axle passes through the latter slot andcarries at its further end small roll 57. Similar roll 59 contiguouswith roll 57 is carried on stub axle 58 journaled at its other end inwide lever 54. Large wheel 61 affixed to axle of traverse roll 14 haswide shallow recess 63 on its near face to accommodate the pair of smallrolls; it provides inner track 67 and outer track 69 for respectiverolls 57 and 59. In this view roll 57 is riding on the inner track,while contiguous roll 59 is spaced from the outer track.

FIG. 9 shows the apparatus of FIG. 8 with the respective elements in thesame orientation, while FIG. 10 shows them with certain of the elementschanged in position corresponding to intentional relocation thereofduring operation. Specifically, pivot bar 51 is pivoted in FIG. 10 toraise the near ends of small and large levers 52 and 54, thereby raisingintermediate roll 16 out of contact wtih underlying traverse roll 14,and small roll 57 on intermediate roll axle 17 out of contact with innertrack 67 of large wheel 61, and bringing small roll 59 into contact withouter track 69 of the wheel. The increase in radius from the inner trackto the outer track raises the surface speed of the small rolls and ofthe intermediate roll as well, the large wheel being preferably (but notnecessarily) driven by suitable means not shown. This provides a furthervariation in the lay-down of the strand on the package, as compared withthe regularity of the traversing of the strand by the traverse roll andeffectively precludes ri bboning on the package. Mechanism for pivotingpivot bar 51 to raise and lower the intermediate roll may be similar,except for orientation, to that illustrated previously for oscillatingthe roll along a locus essentially perpendicular thereto or may be anyother suitable means.

Advantages of the present invention have been mentioned above, and otherbenefits will be apparent and accrue to those practicing it. Whilemodifications have been described, other departures from the descriptionand illustration herein, whether by addition, combination, orsubdivision of parts and steps, may be undertaken with retention of allor some of the benefits and advantages of this invention, which itselfis defined in the following claims.

The claimed invention:

1. In apparatus for traverse winding a textile strand into package form,means for supporting the package for rotation, a groovedstrand-traversing roll for traversing the strand back and forth alongthe package, and a contiguous roll intermediate the strand-traversingroll and the package location to receive the strand from the traversingroll on the way to the package and to rotate the package by surfacecontact therewith.

2. The apparatus of claim 1 wherein-the strand-traversing rollconstitutes drive means for the intermediate roll.

3. The apparatus of claim 1 wherein the intermediate roll is mounted onan oscillatory axle and including means for oscillating the intermediateroll laterally as viewed in a direction parallel to the package surface.

4-. The apparatus of claim 1 wherein the intermediate roll is mounted onan oscillatory axle and including means for oscillating the intermediateroll between positions of contiguity and non-contiguity with thestrand-traversing roll.

5. The apparatus of claim 4 including means for rotating theintermediate roll at a surface speed different from that of thestrand-traversing roll when the respective rolls are non-contiguous.

6. In apparatus for traverse winding a textile strand into package form,means for supporting the package for rotation, a groovedstrand-traversing roll, a roll intermediate the strand-traversing rolland the package location and normally contiguous with both thestrand-traversing roll and the package to receive the strand from thestrandtraversing roll on the way to the package, the package beingrotated by surface contact with the intermediate roll.

7. The apparatus of claim 6 wherein the package-supporting meansincludes a swing arm, whereby the distance between the package axis andthe axis of the intermediate roll is variable, and the intermediate rollis mounted for movement of the axis thereof with regard to the axis ofthe strand-traversing roll.

8. The apparatus of claim 6 including means for oscillating the axis ofthe intermediate roll to move the intermediate roll along the surface ofthe strand-traversing roll to and fro successively with and counter tothe direction of rotation.

9. The apparatus of claim 6 including means for oscillating the axis ofthe intermediate roll to move the intermediate roll intermittently outof contact with the strandtraversing roll.

10. The apparatus of claim 9 including means for rotating theintermediate roll at a greater surface speed than the strand-traversingroll when the respective rolls are non-contiguous.

11. In apparatus for traverse Winding a textile strand into package formfrom a strand source, means for supporting the package for rotation,adjacent means for traversing the strand back and forth along and fordepositing it onto the package and including a roll intermediate thetraverse means and the strand source to rotate the package by surfacecontact therewith, the axis of the intermediate roll being movable withregard to the package outline.

12. The apparatus of claim 11 wherein the adjacent means includesstrand-traversing means separate from the intermediate roll but adjacentthereto.

13. The apparatus of claim 11 wherein the intermediate roll itself isgrooved to constitute traversing means for the strand.

14. The apparatus of claim 11 including means for moving the axis of theintermediate roll back and forth circumferentially with regard to thepackage surface, both ends of the axis moving in the same direction atthe same time.

15. The apparatus of claim 11 including means for moving the axis of theintermediate roll back and forth circumferentially with regard to thepackage surface, the respective opposite ends of the axis moving inopposite directions at the same time.

16. In apparatus for traverse winding a strand onto a package, a groovedstrand-traversing roll, drive means for the strand-traversing roll, anormally contiguous intermediate roll for receiving the strand from thestrandtraversing roll and for depositing it onto and driving the packagesurface, and means for spacing the intermediate and traversing rollsintermittently from one another.

17. The apparatus of claim 16 wherein the mounting for the intermediateroll supports a normally undriven rotatable device interconnected to theintermediate roll and connectable to the drive means for the traversingroll when the intermediate and traversing rolls are spaced from oneanother.

18. The apparatus of claim 17 wherein the drive means for the traversingroll comprises a wheel having an inner track and an outer track spacedfrom the axis thereof, and the intermediate roll has interconnectedthereto a rotatable device normally in contact with both the inner trackand the normally undriven rotatable device, the normally undrivenrotatable device being in contact with the outer track when theintermediate and traversing rolls .are separated, thereby driving theintermediate roll at a greater speed upon constant speed of the wheelwhen the rolls are separated than when they are together.

References Cited UNITED STATES PATENTS FRANK J. COHEN, Primary Examiner.

NATHAN L. MINTZ, Examiner.

UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent 3'374r960Dated 26 March 1968 I ROBERT K. STANLEY It is certified that errorappears in the above-identified patent and that said Letters Patent arehereby corrected as shown below:

Column 1 line 63 "as" should read -at-;

Column 4 line 2 "wtih" should read with;

Column 5, line 10, "source" should read -package-.

Signed and sealed this 8th day of August 1972.

(SEAL) Attest:

ROBERT GUTTSCHALK EDWARD M.FLETCHER,JR.

Commissioner of Patents Attesting Officer

